Warp beam and analogous device



A. BALTHASAR. WARP BEAM AND ANALOGOUS osvxca.

APPLICATIONFILED. AUGJB. 1921. 1 1M 1 m Patented May 23 1922.

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R. H. BARNITZ.

MAIL BAG CATCHER. APPLICATION FILED-DRAG, I920.

Patented May 3 192 'an'rn'nn nr sea, or

MON'I'CLAIR, NEW JERSEY.

WARP BEAIME 'AND ANALOGOUS DEVICE.

iaienai.

To all whom it may concern:

Be it known that l[, ARTHUR BALTHeSAR, a citizen of the United States, and resident of Montclair, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Warp Beams and Analogous Devices, of which the followingis a specification.

My present invention relates more particularly to supply reels of the type known as warp beams, but certain features'of my invention are applicable in other relations. Warp beams commonly comprise a long roll or barrel onwvhich are wound separate successive parallel spiral coils of thread for the warp of a loom. As the warp commonly comprises hundreds of separate warpthreads and the length of each must be considerable in order that each piece of fabric woven therefrom may be of desired commercial .length, the load of. warp, usually silk, carried by the warp beam is very heavy, and the construction must be relatively massive in order to carry the requisite load, without sagging. In order to get the requ red stiffness without too great weight, the cylindrical central roll or barrel is commonly made of well -seasoned, carefully -selected, light weight wood, which is preferably made considerably longer than the width of the widest warp to be contained thereon.

As the width of the warp Will be varied from time to time, the flanges which support the outer end coils of the warp must be ad justable. Much difficulty is encountered, much time wasted, and much expense 1ncurred in effecting desired adjustments of these end flanges, for it is the universal'experience that the front faces of these confining flanges must be trued to absolutely parallel planes at right angles to the axis of the roll.- therwise, when the end threads of the warp'are Wound on to form the flat spiral layers supported against the respective plane faces of the flanges, said layers would be deformed, being crowded in by the intilting part of the face and permitted to fall out Where the out-tilting part leaves more space. Moreover, uneven flanges would drag unevenly on the end lines of thread as they are drawn off the roll.

The general purpose of my invention is to provide a warp beam having its roll portion made of wood, for the purpose of lightness, but having the end portions, for a distance sufficient to cover the range of flange adj ust- Specification of Letters lPatent. P m m g yggg Application filed August 13, 1921. Serial No. 491,919.

merit desirable in practice, provided with cylindrical steel sleeves having accurately formed and sized, true-cylinder surfaces on which the hubs of the flanges are slidably mounted and on which they have a smooth sliding .fit, the accuracy of which may be as perfect as desired. While the clearance, that is, the excess in diameter of the hub surface over the diameter of the sleeve surace, may be as small as desired, something llke .001 of an inch, that is, .0005 on each side, will be found satisfactory. Thus formed and with a fairly long hub, it becomes impossible for out of parallelism during endwise adjusting movement thereof. Consequently, there is no truing to be performed when the desired position of adjustment has been reached. The outer surface of the sleeve, between the flanges, on which the silk is wound, is unbroken by anyscrew threads, and the joint between flanges and sleeve is so fine that there is no danger; fibres of the silk of the warp getting pinched therein.

Another feature of my invention. is combining with the above true-cylinder, slidingfit sleeve, a screw threaded surface on each sleeve extending toward the adjacent end of the barrel, this screw thread being utilized to cause or control finely graduated adjusting movement of the flange hub. A ,still more specific feature of the invention which is of peculiar advantage is having the screw thread on the sleeve engage directly with an internal thread projecting inward from the inner surface of the hub of the flange, whereby endwise adjusting is effected merely by rotating the flange. The screw threads on the outer surface of the sleeve are square topped, the tops lying in and constituting to the smooth portion of the sleeve is prefen ably proportioned so that the flangehub cannot be screwed toward the ends far enough to uncover the screw threads. The

the flange faces to get or even possibility, of

co'ntinuations of the true cylinder bearing Consequently, when ends of the sleeves afford true rigid bearing surfaces for the; tension drums that are bolted to the ends of the roll.

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' The above and other features-of my inl vention may be more fully understood in the following description in connection wlth the drawing in which the figure is an ele- 1a The which, in this particular vation of a complete warp beam partly in section.

In the drawings, the flange, sleeve, andother parts at the ends of the rollvare shown in true proportions, and the actual sizes of the parts, for one type of warp beam, may be scaled from the diameter'of' the flange case, measured between 9 and 10 inches. All of the central portion of the barrel, which may be very long, is broken away, the portion not-shown being a continuation of and identical with the portion that is shown on either side thereof.

The wooden barrel 1 is longitudinally grooved at 2, E2, to receive bolts 3, 3 whic clamp the, tension drums 4, 4:, against the ends 5 of the barrel by means of nuts 6, 6.

The construction at the ends being similar and symmetrical, only the right hand end which is sectioned for the purpose need be described in detail.

The barrel is turned off at the ends soas to form a square shoulder 7 to a depth equal.

9, the threads of which are cut-into the cyl inder, leaving,the'tops square, their top surfaces being in fact the original true-cylindersurface. (The threads may be about eight to an inch and square sided as shown.

The remainder of the sleeve, for a distance preferably at least equal to the threaded rtion, formsthe above described sliding Elia-ring surface of thehub 10 of the flange length of the hub 10 is preferably equal to or greater than the length of the smooth portion of the sleeve, so that in the proportions shown the extreme wobble permitted by a bearing surface clearance of .001, or less, would be imperceptible and entirely negligible so far as concerns-its effect in permitting angular displacement of front plane of flange 12 from its desired position, which is exactly'atright angles to the axis of the barrel.

The hub may be moved to and fro by hand and then looked in any desired position by means of set screw 13, but in view of the accuracy of the setting required it is prefergreat practical able that the screw thread 9-be utilized in effecting such adjustmentj While a screw collar having thrust or swivel engagement with hub 10 mi ht'beemployed, there is i a vantage in simplyforming the interior surface of the hubwith the inwardly projected screw threads 14.

By the latter construction the guiding and *truing function of the hub is separated from and made independent of the screw adjustment function, although both are combined in each of the two elements, namely, the inner metallic face of the hub and the outer metallic face of the sleeve.

The use of the sleeve 8 affords a more While I have disclosed precisely the construction, proportions and dimensions of a referred embodiment of my invention, it will be obvious that many variations are possible and are within the spirit of my invention. For instance, it is permissible and may prove desirable to cut away or relieve one or the other of the long bearing surfaces on hub or sleeve, thereby decreasing the surface of contact and the resulting friction without in any wise impairing the accuracy of the sliding fit.

I claim:

1. A roll having radially projecting, annular members, the hub portions of said members having internal smooth, true-cylinder, bearing surfaces and smooth, metal, true-cylinder bearing surfaces on the roll, fitting said hub surfaces very accurately, the length of said metal bearing surface on the roll being equal to or greater than the desired range of adjustment of the flanges, and: beyond said smooth bearing surfaces on the roll, and coaxial therewith, a threaded surface, the thread being depressed to a smaller radius than said smooth surface of the roll, and means engaging said threads arranged to force said hub and flange away from the end of the roll.

2. A roll having radially projecting, annular members, the hub portions of said members having internal smooth, true-cylinder, bearing surfaces and smooth, metal, true-cylinder bearing surfaces on the roll, fitting said hub surfaces very accurately, the length of said metal bearing surface on the roll being equal to-or greater than the desired range of adjustment of the flanges, and, beyond said smooth bearing surfaces on the roll, and coaxial therewith, a threaded surface, the thread being depressed to a smaller radius than said smooth surface of the roll, and means engaging said threads arranged to force said hub and flange away from the end of the roll. said means consisting of threads integral with one end of the huband projectin inwardly from the smooth cylindrical surface thereof.

, radiallg hub and tamper 3. A roll having cast metal, plane faced,

projecting annular flanges and integral ubs, the inner bearing surfaces being smooth, true;cylinderisurfaces and smooth, metal, true-cylinder bearing surfaces on the roll, fitting said hub surfaces very accurately, the length of said metal bearing surface on the ,roll being equal to or greater than the desired range of adjustment of the flanges and, beyond said smooth bearing surfaces on the roll, and coaxial therewith, a threaded surface, the thread" being depressed to a smallerv radius than said smooth surface of the roll, and means engaging said threads arranged to force said hub and flange away from the end of the roll; i I

4. A roll having cast metal, plane faced, radially projecting annular flanges and integral hubs, the inner bearing surfaces being smooth, 'true-cylinder surfaces and smooth,

surface, the thread being depressed. to a smaller radius than said smooth surface of the roll, and means engaging said threadsarranged to force said hub-and flange away from the end of the roll, said means consisting of threads integral with-one end of the rojecting inwardly from the smooth cylindrical surface thereof.

5. A roll having oppositely facing limiting flanges slidably mounted thereon, the opposed faces of the flanges being formed as true planes parallel with each other and at right angles. to the axis of the roll and integral hubs for the respective flanges being located wholly on the outer side of said plane faces and extending toward the respective ends of rollgthe bearing surfaces within the respective hubs. and on the roll, being accurately-fitted true-cylinder, metal surfaces,

the length of said surfaces, both on the roll and inthehub being at least equal to the distance of the desired longitudinal adjustment of the flange; and the roll being formed beyond ,the respective cylindrical bearing surfaces with screw thread rooves below the level of said bearing sur ace extending toward the end of the roll, and means engaging the respective threads arranged to screw-adj ust the respective hubs away from the end of the roll and means for locking the parts'in the adjusted position.

(5. A warp beam comprising a long wooden barrel, the surface of Which'is a true-cylinder consisting of the wood exposed along the intermediate portion of itsglength and. heavy metal sleeves near each end, cast-metal, plane faced, radially projecting annular flanges and integral hubs, the inner bearing surfaces of which are smooth, true-cylinder depressed to a" smaller radius than said.

surfaces of which are smooth, true-cylinder;

surfaces; and smooth, metal, true-cylinder bearing surfaces on sleeves, fitting said hub surfaces very accurately, the length of said metal bearing surface of the sleeve being equal to or greater than the desired range of adj ustvment of the flanges and, beyond said smooth ,bearing surfaces on the sleeve, and forming"- an extension of said true cylinder surface, a threaded surface, the thread being depressed to a smaller radius than said smooth surface, and means en aging said threads arranged to force sai' hub and flange away from the end of the roll, said means consistin of threads integral with one end of the hu and projecting inwardly from the smooth cylindrical surface thereof.

8. A- warp beam comprising a cylindri- 105 cal wooden barrel having at the end portions thereof, heavy metal cylindrical sleeves of the same external diameter as the barrel; and slidably mounted on said sleeves, oppositely facing cast metal flanges, the opposed faces ofthe flanges being formed as true planes parallel with each other and at right angles to the axis of the roll and integral hubs for the respective flanges, located wholly on the outer side of said plane faces and extending toward the respective ends of beam, thebearing surfaces within the respective hubs and on the sleeves being accu-' rately-fitted, true-cylinder, metal surfaces, the length of, said surfaces, both on the sleeves and in the hubs being at least equal to the distance of the desired longitudlnal adjustment of theflange; and the sleeves being formed beyond the respective cylindrical bearing surfaces each w1th screw thread grooves below the level of'said bearing-surface extending toward the adjacent end of the beam; and threads'inwardly projecting from the outer ends of thehubs and engage ing the respective threads toscrew-adjust the respective hubs toward and away from the adjacent end of the beam and means for" locking the hub in the adjusted position.

9. A warp beam comprising a cylindrical Wooden barrel having at the end portions thereof, heavy metal cylindrical sleeves of the same external diameter as the barrel; and slidably mounted on said sleeves, oppositely facing cast metal flanges, the opposed faces of the flanges being formed as true planes parallel with each other and at right angles to the axis of the roll, and integral hubs for the respective flanges, located wholly on the outer side of said plane faces and extending toward the respective ends of beam, the bearing surfaces within the respective hubs and on the sleeves being 210- curately-fitted, true-cylinder, metal surfaces, the length of sald surfaces, both on the sleeves and in the hubs being at least equal to the distance of the desired longitudinal adjustment of the flange; and the sleeves being formed beyond the respective cylindrito end along opposite sides of its periphery friction drums havingwebs bearing on the 1 ends of the metal sleeves and clamping bolts extending through said webs and grooves from end to end of the barrel, clamping said parts in fixed relation.

Signed at New York in the county of New York and State of New York this 10th da of August, D. 1921.

ARTHUR BALTHASAR. 

